LED light strip and illumination system

Abstract

Provided is an LED lamp strip and a lighting system. The LED lamp strip comprises a lamp strip body, an installing groove, a first connection assembly, a second connection assembly and third connection assemblies. The lamp strip body arranged in the installing groove comprises opposite first and a second end portions. The first connection assembly is connected with the first end portion for connecting the lamp strip body with an external power source and the second connection assembly is connected with the second end portion for blocking the same. Lamp bars are arranged between the first and second end portions; the third connection assemblies are arranged between the adjacent lamp bars for electrically connecting them. Each lamp bar comprises a shell, a circuit board arranged in the shells and an LED lamps arranged on the circuit boards; and gaps exist between the LED lamps and the shells.

The invention claimed is: 
     
       1. A light-emitting diode (LED) light strip comprising:
 a first connecting assembly; 
 a second connecting assembly; 
 a third connecting assembly; 
 a light strip comprising a first end portion and a second end portion which are opposite to each other, wherein the first connecting assembly is connected with the first end portion and configured for electrically connecting the light strip with an external power supply, and the second connecting assembly is connected with the second end portion and configured for blocking off the second end portion; 
 a mounting groove with the light strip arranged in the mounting groove, the mounting grove comprising:
 a mounting groove body configured for receiving the light strip; and 
 a mounting-groove snap-fitting element configured for fixing the light strip in the mounting groove body, wherein the mounting-groove snap-fitting element is fixed in the mounting groove body; and 
 
 a plurality of light bars arranged between the first end portion and the second end portion, wherein the third connecting assembly is arranged between adjacent light bars and configured for electrically connecting the adjacent light bars, and 
  each of the light bars comprises:
 an outer housing; 
 a circuit board arranged within the outer housing along an extending direction of the light bar; and 
 an LED lamp arranged on the circuit board, wherein a gap is formed between the LED lamp and the outer housing. 
 
 
     
     
       2. The LED light strip according to  claim 1 , wherein the mounting groove body comprises: positioning grooves configured for fixing the mounting-groove snap-fitting element, and a plurality of mounting holes configured for mounting the LED light strip in an external environment. 
     
     
       3. The LED light strip according to  claim 2 , wherein the mounting groove body has two side plates arranged opposite to each other, and a connecting plate connected between the two side plates, each of the side plates is provided with at least two snap-fitting element stoppers and at least one of the positioning grooves, the at least one of the positioning grooves is located between two adjacent snap-fitting element stoppers, the positioning grooves of the two side plates are corresponding to each other, and the connecting plate is provided with the mounting holes. 
     
     
       4. The LED light strip according to  claim 3 , wherein the mounting groove body is in a substantially V-shaped structure, and the connecting plate is connected at ends, located at a same side, of the two side plates. 
     
     
       5. The LED light strip according to  claim 2 , wherein the mounting-groove snap-fitting element comprises a limiting portion and two clamping portions;
 the limiting portion is located between the two clamping portions, the limiting portion is configured to be in contact with the light strip so as to limit the light strip, and the two clamping portions are configured to cooperate with the limiting portion so as to clamp and fix the light strip within the mounting groove; and 
 the two clamping portions are provided thereon with a plurality of first gripping teeth configured for gripping the light strip, and handlebars configured for detaching the mounting-groove snap-fitting element. 
 
     
     
       6. The LED light strip according to  claim 5 , wherein the two clamping portions respectively abut against inner sides of two side plates of the mounting groove body, and the handlebars are snap-fitted with the positioning grooves. 
     
     
       7. The LED light strip according to  claim 1 , wherein the first connecting assembly comprises a first connecting element and a first connecting housing;
 the first connecting element comprises a first connecting element body, first plug pins and power lines, the first plug pins and the power lines are electrically connected with each other and are respectively arranged at two opposite ends of the first connecting element body, and the first plug pins are electrically connected with one of the light bars so as to direct current from the power lines into the one of the light bars; and 
 a first stopper is provided on the first connecting element body, and a first clamping groove is formed between the first stopper and the first connecting element body; the first connecting housing is locked by the first clamping groove so as to fix the first connecting element with the first connecting housing. 
 
     
     
       8. The LED light strip according to  claim 7 , wherein the first connecting housing comprises a first housing and a second housing, a folding spine is provided between the first housing and the second housing and configured for making the first housing and the second housing superposed one on another, the first housing and the second housing each are provided thereon with a first clamping part, a protrusion and second gripping teeth, the protrusion is configured for preventing the first housing and the second housing which are superposed one on another from rebounding, and the second gripping teeth are configured for gripping the light strip; and the first clamping part is clamped in the first clamping groove so as to fix the first connecting element with the first connecting housing. 
     
     
       9. The LED light strip according to  claim 8 , wherein the first housing is provided thereon with a first snap-fitting element, the second housing is provided with a first snap-fitting hole, and the first snap-fitting element is in cooperation with the first snap-fitting hole so as to fix the first housing with the second housing. 
     
     
       10. The LED light strip according to  claim 9 , wherein a first snap-fitting plate is provided at one end of the first housing away from the second housing, the first snap-fitting hole is provided in the first snap-fitting plate, and a fixing groove is provided between the protrusion of the first housing and the first snap-fitting plate; a second snap-fitting plate is provided at one end of the second housing away from the first housing, and the first snap-fitting element is provided in the second snap-fitting plate; and the second snap-fitting plate is embedded in the fixing groove, and a side wall of the first snap-fitting plate abuts against the protrusion. 
     
     
       11. The LED light strip according to  claim 1 , wherein the second connecting assembly comprises a second connecting element and a second connecting housing;
 the second connecting element comprises a second connecting element body and a short tongue-shaped member, one end of the short tongue-shaped member is connected with the second connecting element body, and other end of the short tongue-shaped member is connected with one of the light bars; and 
 a second stopper is provided on the second connecting element body, and a second clamping groove is formed between the second stopper and the second connecting element body and configured for making the second connecting element clamped in the second connecting housing. 
 
     
     
       12. The LED light strip according to  claim 1 , wherein the third connecting assembly comprises a third connecting element and a third connecting housing;
 the third connecting element comprises a third connecting element body and third plug pins, the third plug pins are provide at two ends of the third connecting element body, and the third plug pins at the two ends are respectively electrically connected with adjacent light bars; and 
 the third connecting housing is provided thereon with a plurality of pairs of skeleton members, and a third clamping groove is formed between the skeleton members of each pair and configured for clamping the third connecting element. 
 
     
     
       13. The LED light strip according to  claim 1 , wherein a fourth connecting assembly is further provided between adjacent light strips and configured for connecting two light bars perpendicular to each other, the fourth connecting assembly comprises a fourth connecting element and two fourth connecting housings;
 the fourth connecting element comprises a fourth connecting element body and fourth plug pins, the fourth plug pins are electrically connected with the two light bars perpendicular to each other, and the fourth plug pins are connected with the fourth connecting element body; and 
 the fourth connecting element is clamped in and fixed with one of the fourth connecting housings. 
 
     
     
       14. An illumination system, wherein the illumination system comprises a power supply system and the LED light strip according to  claim 1 , and the power supply system is electrically connected with the LED light strip for supplying power to the LED light strip. 
     
     
       15. The illumination system according to  claim 14 , wherein the mounting groove body comprises: positioning grooves configured for fixing the mounting-groove snap-fitting element, and a plurality of mounting holes configured for mounting the LED light strip in an external environment. 
     
     
       16. The illumination system according to  claim 15 , wherein the mounting groove body has two side plates arranged opposite to each other, and a connecting plate connected between the two side plates, each of the side plates is provided with at least two snap-fitting element stoppers and at least one of the positioning grooves, the at least one of the positioning grooves is located between two adjacent snap-fitting element stoppers, the positioning grooves of the two side plates are corresponding to each other, and the connecting plate is provided with the mounting holes. 
     
     
       17. The illumination system according to  claim 16 , wherein the mounting groove body is in a substantially V-shaped structure, and the connecting plate is connected at ends, located at a same side, of the two side plates. 
     
     
       18. The illumination system according to  claim 15 , wherein the mounting-groove snap-fitting element comprises a limiting portion and two clamping portions;
 the limiting portion is located between the two clamping portions, the limiting portion is configured to be in contact with the light strip so as to limit the light strip, and the two clamping portions are configured to cooperate with the limiting portion so as to clamp and fix the light strip within the mounting groove; and 
 the two clamping portions are provided thereon with a plurality of first gripping teeth configured for gripping the light strip, and s configured for detaching the mounting-groove snap-fitting element.